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JJkizak

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Everything posted by JJkizak

  1. JJkizak

    hd-dvd?

    The stories I read said the "red" can be run on standard production lines with a change that takes 15 minutes. The "blue" requires a new 1 billion dollar factory and might not be as cheap to produce per disc as the "red". Now add it all up. "0" versus "1 billion" What do you think is going to happen? JJK
  2. Which printer port? USB? Serial? Parrallel? Firewire? Print Server? JJK
  3. Marvel: Yes it will. Many a tech has been caught on this one. Voltages check ok but the dingus no workie. JJK
  4. Remember that with the circuit energized you will get the normal voltage readings even if the transformer is open. So disconnect the wires and use an ohmeter. Also check for smoke and a nice burned smell. If its the output transformer you might have to sell your grandmother to get another one as they were almost designed for the particular amp in power handling and frequency response capability. JJK
  5. DrWho: PCM is stereo only. AC-3 is PCM recoded to save room on DVD's, etc. AC-3 is considered a "transport stream" . If you encode PCM to AC-3 the resultant file will be 1/2 the PCM and the quality the same or better. Dolby 5.1 is also encoded in the ac-3 transport stream. All DVD's are recorded in AC-3 stereo because it saves tons of room on the disc, especially if you include selections of Dolby 5.1, DTS, etc as you have to have room on the disc to put all of this stuff on. That's why they use MPEG-2 to incode the video as it compresses the video considerable. And by the way all of your broadcasts on HDTV are incoded in the MPEG-2 transport stream so that they can be transported with minimum bandwidth requirements, so when you look at that beautiful HDTV picture it is MPEG-2. The encoders used by the big guys cost about 30 g's apiece. You will occasionally see the blocking and artifacts associated with MPEG-2 coding when watching your HDTV. Basically PCM and AC-3 quality are the same. The sample rate for AC-3 is about 224KHZ. If your doing HI-Def it jumps to about 384KHZ. Dolby 5.1 is somewhere around 484 KHZ. Once you encode the sound and video together on a DVD the sound is then known as MPEG1 Layer2. If you bust the sound back off the VOB file then it beomes AC-3 again. Kool, huh? Then theres MP-3, DVD-Audio, and another one I forgot that the Mac's use. JJK--Psuedo Guru PS: Forgot WMA, MOV, Real Player
  6. According to Bell Labs 25ft apart and placed in corners with a center speaker fillin is about minimum for high SPL's. Remember that the walls and ceiling and floor are the extensions of the base-horn. You can go smaller but you won't be able to really crank it up too much. Always use the longest dimension of the wall. JJK
  7. Oh yes' I remember now, yes, the old ones, yes I remember now, they were glass and they glowed and they were hot. I now hold in my hand a chip that is the equivalent of 1 billion tubes. What am I missing here? JJK
  8. I used a Fluke at work---beat the hell out of it---and it worked fine. It ran about $280.00 at Grainger or Mcmaster Carr. JJK
  9. Thebes: If everyone wrote threads like you I wouldn't have time to listen to my horns. Excellent. JJK
  10. While refinishing my unfinished K-horns which had no grill cloth or protective screening on the bass bin I noticed what looked like mouse terds. I opened up the speaker and looked for debris but there was none except the terds. I vacummed them out (not very many and that was 40 years of accumallation) and speculated that Mr. Klipsch sprayed some real bad stuff in there to keep them out. I fully expected to see some little beedy eyes starring back at me. Then again maybe they didn't like loud music. There were no chewings, no damage of any kind. Yeah, I know, they were classical mice. JJK
  11. Very nice and accurate and understandable drawings. In fact, they are outstanding. Take a bow. JJK
  12. Dean: Five turn and ten turn wirewound pots are drum shaped and the resistance lets say is 100k. They just wind the wire around a core then wind the core inside the drum and then the shoe follows the core. There are different scenarios but what it does is split the control adjustment into a very precise control (ten turns to travel across the windings of 100k instead of one turn. There are a lot of cheap ones on electronic boards (miniture) that are not very good in quality. The good ones will usually be about 2" in diameter and about 3" or 4 " deep. And they are extremely reliable and expensive. We used them a lot in some high falooten Parametric amplifiers (1.0db noise figure, 40 db gain, 10 meg bandwidth, 400-960 megs). ($50,000.00). They also don't generate any noise and because they are wirewound they are extremely stable. Also for every small movement of the adjustment the change is constant, not like carbon where it will not change for a bit then jump up or down in resistance. Talking minute changes here where carbon really is unusable. The brush in the wirewound is copper or ? JJK
  13. You can also use 5 turn and 10 turn precision wire wound pots. (no noise)and very reliable. My choice. JJK
  14. richinir: My point exactly. Same thing with a drum cynbal. You need about maybe 4 or 5 more drivers, each one running at 1/5th the volume so that you have the same power output but you are moving more air. This will give you the added presense of the flute. It takes a musician to really create the ultimate speaker. The K-horns reproduce just fine with the bass and bass drums but the midrange and high end need to push more air period. Output DB is only one measurement and does not represent itself properly when a live band is in your living room. Play the recording, then have the live band play the same song. Not even close. JJK
  15. If you turn the speakers up loud enough you won't have to make the house larger, they will do it for you. JJK
  16. Good question. I believe its a totally unrelated uncalibrated rediculous figure that changes depending how strong your input signal is. Sometimes -20 will be a fine volume then upon changing a disc I will have to increase the reading to -14 to get the same output as before. In my opinion it is some kind of really useless reading that means absolutely nothing because it is not calibrated. Rather have the pointer on the volume control. JJK
  17. JJkizak

    Copying a CD

    I remember three things for sure: Go-Video, Samsung, and Nero 6.6 would make the copies. Nero quickly posted that it could not. The copyright people were fuming and still are. But me being a dummy didn't get the website that came out with this stuff. Yes, it could be total crap. I believe it was at Caas 2005 or something, some major show. JJK
  18. JJkizak

    Copying a CD

    That's the same question I asked but evidently it is true as the recorders were for introduction in 2006. One was Samsung and the other I think LG. Of course someone might be unloading a bunch of bull, but I believe everything I read. If in fact it was true the copyright people will straighten them out so that eventually we have to give a DNA scan to make a copy, maybe. The statement I read was an exact copy of the encryted disc without affecting the encryption. JJK
  19. Just got a flyer from MCM showing HDMI to DVI conversion cables up to 50 ft for $269.00. They didn't waste any time. JJK
  20. The last good rock song I heard was from that old fat lady years ago that had a one hit wonder kind of like blues. JJK
  21. That was one excellent explanation. Maybe that's why they pay you the big bucks. JJK
  22. You all forgot one thing. Big Ben Hamburger? is injured and really can't throw and the Steelers are hiding that fact. If he was healthy the Steelers would have had 3 more touchdowns. And I hate the Steelers because I'm a Browns fan. JJK
  23. Yamaha generally has a good rep. As far as the connections DVI is already outmoded as the HDMI is now on the newer model DVD players and HDTV's. The newer DVD upconvert players only work through HDMI and not component. They do this so you have to buy a new HDTV with the HDMI jack. Also some of the HDTV's with DVI inputs only handle 720p. The HDMI cable combines the video and sound whereas DVI is video only. I assume (bad word) that the future HD-DVD and Blue-Ray DVD players will all have HDMI jacks for hi def only and the heck with everybody with component out for hi-def. So that means component and DVI jacks are dead in the water. JJK
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